for what you said, the GT, GT2, or either of the XXX NT's will be allright, rought rack you might lean more towards one of the associateds. Truggy or Monster truck might be a little more fun, but I have not driven a nitro 1/10th gas truck, so have no personal experience with the gas truck. Electric 1/10 truck is the BOMB. The truggy class is growing like mad, and 1/8th buggies as well.
HTH
Rod